// Copyright (c) 2008-2010, Arne Claus
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the 
// following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this list of conditions and the following 
//   disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following 
//   disclaimer in the documentation and/or other materials provided with the distribution.
// - Neither the name Arne Claus nor the names of any contributors may be used to endorse or promote products
//   derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
// USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef __INCLUDED_CRL_PLATFORM_HANDLE_H_
#define __INCLUDED_CRL_PLATFORM_HANDLE_H_

#include "CRL_Defines.h"
#include "CRL_PixelBufferDescriptor.h"
#include "CBL_FileSystem.h"

CB_SUBNAMESPACE_START(RenderLib)

// ------------------------------------------------------------------------------------------------
//	IPlatformHandle
// ------------------------------------------------------------------------------------------------

class IPlatformHandle
{
public:

	static const uint32 RenderDoubleBuffered 			= 1 << 1;
    static const uint32 RenderFullScreen     			= 1 << 2;
    static const uint32 RenderThreadSafe     			= 1 << 3;
    static const uint32 RenderDoNotUseHardware   		= 1 << 4;
    static const uint32 RenderMultiSamplingEnabled  	= 1 << 5;
    static const uint32 RenderDeferredMainContextColor 	= 1 << 6;
    static const uint32 RenderDeferredMainContextDepth 	= 1 << 7;
    static const uint32 RenderDeferredMainContext		= RenderDeferredMainContextColor | RenderDeferredMainContextColor;
    
public:
    
    uint32 m_Flags;
	
	uint16 m_BufferWidth;  			//!< Main context pixel width.
	uint16 m_BufferHeight; 			//!< Main context pixel height.
    uint8  m_MultiSamplingQuality; 	//!< Use with RenderMultiSamplingEnabled, defines the Multisampling Quality
    uint8  m_StencilSize;			//!< Bit size of the stencil buffer
    
    const IFileSystem* m_pFileSystem;	//!< Filesystem which allows read access to graphic assets
	
	SPixelFormat::Enum m_ColorBufferFormat;	//!< Main context color format
	SPixelFormat::Enum m_DepthBufferFormat;	//!< Main context depth format
	
	virtual RenderType::Enum GetRenderType() const = 0;
    
public:

	IPlatformHandle() 
    	: m_BufferWidth(1024)
        , m_BufferHeight(768)
        , m_MultiSamplingQuality(1)
        , m_StencilSize(8)
        , m_pFileSystem(NULL)
        , m_ColorBufferFormat(SPixelFormat::RGB_24)
        , m_DepthBufferFormat(SPixelFormat::Depth_24)
    {
    }
};

// ------------------------------------------------------------------------------------------------
//	SOpenGLHandle
// ------------------------------------------------------------------------------------------------

class COpenGLHandle : public IPlatformHandle
{
public:

	void* GetContext() { return m_pContext; }
	virtual RenderType::Enum GetRenderType() const { return RenderType::OpenGL; }
    
protected:

	friend class CContextFactory;
	void* m_pContext;
};

// ------------------------------------------------------------------------------------------------
//	SDirectXHandle
// ------------------------------------------------------------------------------------------------

template <RenderType::Enum TType>
class CDirectXHandle : public IPlatformHandle
{
public:

	void* GetDevice() { return m_pDevice; }
	virtual RenderType::Enum GetRenderType() const { return TType; }
    
protected:

	friend class CContextFactory;
	void* m_pDevice;
};

CB_SUBNAMESPACE_END

#endif